Improved method for identifying integration support
This pre-release uses the presence of classes on the classpath or lack there of to determine if an appropriate version of a supported library is available and should be instrumented.
The servlet filter that is added to Tomcat and Jetty is now marked as async supported so as to not break existing async servlet endpoints.
It also replaces json serialization with msgpack for sending traces to the trace agent. This improves performance, especially for large traces.
Known Issues:
- Because of the use of SLF4J, if using something like an executable jar that doesn't put things on the system classpath (spring boot), logging might be broken.